The Department recognizes that sludge analysis is difficult due to the inherent complexity of sludge matrices. Sludge is rich in organic matter and highly variable in physical and chemical properties. However, sampling accuracy can be greatly enhanced if the correct protocol is established for the collection, storage, transportation, and analysis of the sludge sample. The Department may reject the method of analysis if it determines that the method of analysis is inaccurate, or for any other good cause.
7 Del. Admin. Code § 7103-152.0